Preheat the oven to 175°C.Butter and flour a springform pan, about 24 cm in diameter.

Beat eggs and sugar until very fluffy.Melt the butter. Stir in flour and baking powder with the eggs,and then fold in butter and cream. Pour into the prepared pan and bake for 25 minutes.

Meanwile, prepare the topping.Just mix all ingredients in saucepan and bring to a obil.Spread it on top of the cake, and bake for another 15 minutes.Let it cool more or less completely before taking it out of the pan.